I have a BME 100 and a 105. Both engines run great, and as stated above, there are simply no other engines with the power/weight of a BME twin. My 100 is well broken in and turns a 26-10 NX at 6400. I tached my 105 when it was brand new and it turned a 26-10 menz S at 6700. It now has a couple of gallons through it and it is a powerhouse. You can't go wrong with BME.